This is the story of the successful Royal Enfield Big Twin Motorcycles, told through road tests and contemporary articles. Included are full specifications and performance data, new model introductions, "classic" reports and an engine analysis. Also featured are DIY descriptions covering overhauling and dismantling. The models covered are the Meteor, Meteor Minor Deluxe, Super Meteor, Constellation and Interceptor MK I, MK II, & TT. The book comes in A4 size and is 128 pages packed with copies of contemporary reviews and photographs. The print quality is below modern standard, but the information contained is priceless.